Vulnerability Description
An issue was discovered in the Linux kernel before 5.6. svm_cpu_uninit in arch/x86/kvm/svm.c has a memory leak, aka CID-d80b64ff297e. NOTE: third parties dispute this issue because it's a one-time leak at the boot, the size is negligible, and it can't be triggered at will
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.6 |
| Canonical | Ubuntu Linux | 18.04 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.suse.com/show_bug.cgi?id=1171736#c3Issue TrackingThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6Mailing ListPatchVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d8Mailing ListPatchVendor Advisory
- https://usn.ubuntu.com/4411-1/Third Party Advisory
- https://usn.ubuntu.com/4412-1/Third Party Advisory
- https://usn.ubuntu.com/4413-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4699Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1171736#c3Issue TrackingThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6Mailing ListPatchVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d8Mailing ListPatchVendor Advisory
- https://usn.ubuntu.com/4411-1/Third Party Advisory
- https://usn.ubuntu.com/4412-1/Third Party Advisory
- https://usn.ubuntu.com/4413-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4699Third Party Advisory
FAQ
What is CVE-2020-12768?
CVE-2020-12768 is a vulnerability with a CVSS score of 5.5 (MEDIUM). An issue was discovered in the Linux kernel before 5.6. svm_cpu_uninit in arch/x86/kvm/svm.c has a memory leak, aka CID-d80b64ff297e. NOTE: third parties dispute this issue because it's a one-time lea...
How severe is CVE-2020-12768?
CVE-2020-12768 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-12768?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Canonical Ubuntu Linux, Debian Debian Linux.